Axle-bearing.



No. 882,047. PATENTED MAR. 17, 1908.

R. BLUM.

AXLE BEARING. I APPLICATION FILED rm. 11. 1 07.

WITNESSES [NI ENTOR Al/orney a section through the axle box.

ROBERT BLUM, OF LEBANON, ILLlNOIS.

AXLE-BEARING.

Specification of Letters Patent.

Patented March 17, 1908.

Application filed February 11, 1907. Serial No. 356,875.

To all whom it may concern:

Be it known that I, ROBERT BLUM, a citizen of the United States, residing at Lebanon in the county of St. Clair and State of Illinois, have invented certain new and useful Improvements in Axle-Bearings; and I do hereby declare the following to be a lull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the axle bearings or boxes for vehicle wheels; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure l is a longitudinal Fig, 2 is a cross-section through the axle box.

A is a portion of a vehicle axle, and b is the axle spindle on the end of the said axle. This spindle may be cylindrical, or it may be made conical like the end portion of any approved axle.

O is a screwthreaded collar or projection between the said spindle and the main portion of the axle.

D is a bearing tube which its over the said spindle, and which has a thrust plug (Z at its rear end. At its front end the tube I) is provided with a projecting collar (1.

E is a union nut which engages with the screwthreaded collar (,7, and which is provided with an internally projecting llange e for retaining the collar (1.

F is a leather packing washer arranged between the collar (1 and the screwthreaded collar C, and f is a leather packing washer arranged between the collar (l and the flange (2 of the union nut. The union nut is screwed upon the screwthreaded collar so that an oil-tight joint is IOIDIQLI, and it is then secured by a screw g which passes transversely through one side of it into a hole in the screwthreadctl collar.

H is the hub of the vehicle wheel provided at one end with a recess to receive the union nut. The bearing tube is fitted tightly into a hole in the hub, and the hub is provided with a recess h at its other end for a fastening nut I which engages with a screwtlireaded portion 1 on the projecting end portion of the bearing tube. The nut I. secures the wheel hub to the bearing tube, and the hearing tube is revolubly connected with the axle spindle by ,means of the union nut.

The oil or other lubricant inserted between the bearing tube and the axle spindle cannot work out, and it is in'ipossiblc for dust or dirt to penetrate into the said bearing tube.

The plug 1] forms a thrust block for the end of the spindle b, and the nut I is removable and adjustable independent of the said plug. The bearing tube I) fits within a smooth longitudinal hole in the hub II so that it always revolves with the said hub, but it can be adjusted longitudinally by means of the nut I. As the hub becomes worn by contact with the union nut E, and as the packing washers f and F become worn, the nuts E and I are revolved and adjusted so as to take up the wear, by sliding the various parts longitudinally, and so keep the bearing oil tight.

What I claim is:

In an axle box, the combination, with a revoluble wheel hub, oi a longitudinally adjustable bearing-tube in said hub provided with a collar at one end and havinga thrust-block and an externally screwthreaded portion at its other end. an axle provided with a screwthreaded collar and having a spindle journaled in the said tube and bearing against the said thrust-block, a unionnut bearing against one end ol the said hub and connecting the said collars, a packing washer of soft material arranged between the two said collars and preserved from rapid wear by the abutment ol' the said spindle against the said block, and an adjusting nut engaging with the said screwthreaded portion and operating to adjust the contact between the said revoluble hub and the normally stationary union-nut.

In testimony whereof I-have al'lixed my signature in the presence of two witnesses;

ROBERT BLUM.

itnesses I HENRY RINEHARDT, Grnxs. Sonnonnnn. 

